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807 Vermont St

Potrero Hill, SF 94107 4093064 2 units · 2 fl · 1921

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Potrero Hill
At or below average
avg 1.1
1
FewerMore

This building has 1 novs (7y), at or below the Potrero Hill average of 1.1.

Rent & eviction protection

Is 807 Vermont St rent-controlled?

San Francisco's Rent Ordinance caps rent increases and provides eviction protection for most residential units built before 1979 with 2+ units. Here's how this building scores.

Built before 1979
Built 1921
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
Likely rent-controlled. Building age and unit count suggest this property falls under San Francisco's Rent Ordinance.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units2
Floors2
Year built1921
Total area2,157 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4093064
Ownership

Registered owner per SF Assessor-Recorder (secured roll).

Owner name
Ault Harry & Roberta
Mailing address
910 Carolina St San Francisco CA 94107
Last sale
111819

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

807 Vermont Street, a two-unit multi-family residential building constructed in 1921 in Potrero Hill, has experienced several significant events and permit activities over recent years, particularly regarding unauthorized modifications and subsequent corrections. Most notably, the property faced a major compliance issue in 2021 when a ground floor unauthorized dwelling unit was reported, leading to multiple enforcement actions and permits to remove the illegal modifications. This process, which included the removal of unauthorized living spaces such as a bedroom, lounge area, closets, half bath, shower room, wet bar, and kitchen, was officially completed in 2024 with permits showing the capping of water lines and electrical modifications.

The building has undergone several substantial improvements, including a complete window replacement project in 2022 involving 36 windows in the upper unit, and roofing work, with the most recent reroofing permit issued in May 2024. During the 2022 window replacement project, there were multiple complaints regarding construction impacts on neighboring properties, particularly concerning debris management and access issues, which were subsequently addressed. The property has maintained an active permit history, showing ongoing maintenance and compliance efforts by the owners, Harry and Roberta Ault, including resolving various building violations and complaints through proper permitting and restoration work. While there have been numerous 311 calls related to the property, most concern external issues like tree maintenance and general street cleaning, and appear to be promptly addressed.

AI-generated · may contain errors · check the source data tables below

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Risk rating

How 807 Vermont St's risk score is calculated

We trained a model on 7 years of SF DBI inspection data — notice of violation filings, complaint history, and owner track records. It estimates the probability that DBI inspectors will issue a Notice of Violation at this address in the next 12 months. Lower % = safer.

What the score means for you

Grade A–B — Low risk

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Grade C — Moderate risk

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Grade D–F — High risk

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
6th percentile

Out of 726 buildings in this neighborhood, 682 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
42%
No DBI
violation
58%
DBI violation
likely
Model explanation

What's driving this score

The three data points that most influenced this building's risk rating — ranked by the weight the model placed on each one.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Director's hearings (past 7 years)

Director's hearings are escalated enforcement actions for buildings that haven't resolved violations — a serious signal.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

12-Month severity forecast
No violation 66.9%
Moderate concern 25.8%
Severe concern 7.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

807 Vermont St apartment reviews

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The story over time

807 Vermont St event timeline

Violations, complaints, fire incidents, permits, and buyouts — most recent records in order.

2025
Plumbing Permit May 21
Replacement of main drain line including housetrap. the total length is 12 feet.
Complete

See all 14 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 807 Vermont St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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